🐛 fix #681

CHANGELOG.md

@@ -79,6 +79,7 @@
 
 ### v3.4.4 / 2020-08-xx
 
+* [681](https://github.com/Vanessa219/vditor/pull/681) 修正 ExpandMarker 规则，避免无法取消选中区域 `修复缺陷`
 
 ### v3.4.3 / 2020-08-03
 

src/ts/ir/expandMarker.ts

@@ -48,6 +48,11 @@ export const expandMarker = (range: Range, vditor: IVditor) => {
     vditor.ir.element.querySelectorAll(".vditor-ir__node--expand").forEach((item) => {
         item.classList.remove("vditor-ir__node--expand");
     });
+
+    if (!range.collapsed) {
+        return;
+    }
+
     const nodeElement = hasTopClosestByClassName(range.startContainer, "vditor-ir__node");
     if (nodeElement) {
         nodeElement.classList.add("vditor-ir__node--expand");

src/ts/ir/index.ts

@@ -150,7 +150,15 @@ class IR {
                 }
             }
 
-            expandMarker(range, vditor);
+            if (range.toString() === "") {
+                expandMarker(range, vditor);
+            } else {
+                // 当点击选中区域时 eventTarget 与 range 不一致，需延迟等待 range 发生变化
+                setTimeout(() => {
+                    expandMarker(getEditorRange(this.element), vditor);
+                });
+            }
+
             highlightToolbarIR(vditor);
         });